Toward Sustainable Communities: A Resoiurce Book for Municipal and Local Governments

Page 200

Water arad Sewage

; 1IThe’ahswer is that providing water takes far more .. Ienergy than most people realize.‘Before water reaches : : :fieldsortapsi it generally must be pumped.;sometimes.. ,. -ac~ro&entire states. In our homes, water heatersadd. i ~j waim~~ ‘~~~ :~howers and baths. Flotvi~~i ~down .the- i’ F!:d.r&,-w&er goes to a treatment plant to’be pumped” j : isome more;‘Some water-short communities even fsce : the prospect of using mammoth quantities of~energy i.totransform’saltwaterintofresh.

Inamodernsociety,--

‘water .is not just H,O; it’s a form of embo.died energyi i: :-&er the.past few years, growing numbers’of utilities:: have’begun to recognize that saving water. saves’. energy.-&3 a general rule, water efficiency is good for .theenirironment and lucrative for farmers, consumers, I. : and utilities.

For a company like Southern California.

:. Edison, 10% of whose power is used to treat, heat, and: I : I.pump water, negagallons equal negawatts- jequal.1 : ! $&egabucks. That’s why they want to fix those leaky j :. ;.;;t$~~t~;” .j. :.:j (I&II 19911. i

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